.valid-part {
    display: flex;
    width: 100%;
    height: 100%;
    position: fixed;
    justify-content: center;
    align-items: center;
    background: linear-gradient(0deg, black, #dddddd 52%, #dddddd 20%, black);
}

.valid-part label {
    /* padding-bottom: 90px; */
}

.valid-part .valid-item {
    height: 40px;
    margin-bottom: 20px;
}

.valid-part .valid-item input {
    margin-left: 5px;
    border-radius: 3px;
}